Aquatint (from Italian acquatinta: acqua — water, tinta — paint, tone) is a deep‑printing technique in metal engraving that creates tonal patches, renders soft tonal transitions, and produces a unique texture unachievable with other engraving methods.
How it works
A metal plate (copper, zinc, or steel) is coated with a powder — rosin, asphalt, salt, or sugar.
The plate is heated: the powder melts and adheres to the surface, forming a grainy texture.
An acid‑resistant varnish is applied with a brush to areas that should remain light.
The exposed areas are etched with acid (nitric acid or ferric chloride solution): the longer the etching, the darker the tone.
After washing and removing the varnish, ink is applied to the plate, and an impression is made on dampened paper.
Key features
Does not create lines — only tonal transitions.
Often combined with etching: etching provides outlines, while aquatint supplies tone.
Produces a characteristic «velvety» texture due to the grainy layer.
